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1、 High-technology （产品） play an important role in modern society.
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2、 Our school invited （当地的） artists to give us lectures on painting.
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3、 The wine produced in （法国） is highly regarded all over the world.
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4、 The Internet has become part of （日常的） life.
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5、 We set out early in the morning to （避免） the rush hour.
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6、 The students （tell） to keep their desks clean and tidy every day.
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7、 Smartphones （use） widely around the world.
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8、 We （not allow） to walk on the grass.
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9、 About two thirds ofthe earth's surface （cover） by water.
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10、 Linda （hear） to practice playing the violin every evening.
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11、 The dragon boat race （hold） every year in honor of Qu Yuan.
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12、 The flowers （water） every day by my brother.
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13、 These days lots of books （buy） online.
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14、 The dogs （take） good care of by my mother every day.
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15、 Our classroom （clean） twice a day, so it's always clean.
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16、 The player won second place in the race and got a （银） medal.
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17、 The cup is made of （玻璃）, so it breaks easily.
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18、 Those （衬衫） and trousers look nice and I want to buy them for my mother.
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19、 As we all know, every （硬币） has two sides.
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20、 Do you know that （钢） chopsticks are very popular in Korea?